Best Selling Products

Our Best Selling Products category features the most popular and trusted water testing solutions chosen by professionals and everyday users alike. From quick and easy test kits to advanced meters and reagents, these products have earned their place as customer favourites for their reliability, accuracy, and ease of use. Whether you’re testing pool water, drinking water, or industrial systems, these top picks deliver the dependable results you can count on.

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4195 products

Hyzyme Natural Septic Tank Treatment 2kg
Hyzyme
Hyzyme Natural Septic Tank Treatment 2kg Sale price£59.64
Save £3.82
Lovibond Ammonia No.1 Tablets
Lovibond
Lovibond Ammonia No.1 Tablets Sale price£25.54 Regular price£29.36
Electronic TDS MeterElectronic TDS Meter
WATER-I.D.
Electronic TDS Meter Sale price£36.58
TTC/ECOLI & Pseudomonas DipslidesTTC/ECOLI & Pseudomonas Dipslides
DTK-TAW
TTC/ECOLI & Pseudomonas Dipslides Sale priceFrom £27.32
On sale
Palintest Nitrite (Nitriphot) Photometer ReagentsPalintest Nitrite (Nitriphot) Photometer Reagents
Palintest
Palintest Nitrite (Nitriphot) Photometer Reagents Sale priceFrom £46.17 Regular price£51.30
Save £17.70
Palintest Kemio Disinfection Check StandardsPalintest Kemio Disinfection Check Standards
Palintest
Palintest Kemio Disinfection Check Standards Sale price£100.30 Regular price£118.00
On sale
Palintest Chlorine DPD 1 & 3 Extended TabletsPalintest Chlorine DPD 1 & 3 Extended Tablets
Palintest
Palintest Chlorine DPD 1 & 3 Extended Tablets Sale priceFrom £34.11 Regular price£37.90
Save £9.39
Lovibond W600.OG.33mm Cell
Lovibond
Lovibond W600.OG.33mm Cell Sale price£62.81 Regular price£72.20
On sale
Lovibond Plastic Stirring Rod Short (10cm)Lovibond Plastic Stirring Rod Short (10cm)
Lovibond
Lovibond Plastic Stirring Rod Short (10cm) Sale priceFrom £1.84
Lovibond SD Electrode, pH MeterLovibond SD Electrode, pH Meter
Lovibond
Lovibond SD Electrode, pH Meter Sale price£79.82
Save £103.97
Lovibond Pool Control 12 in 1 Photometer PM600Lovibond Pool Control 12 in 1 Photometer PM600
Lovibond
Lovibond Pool Control 12 in 1 Photometer PM600 Sale price£695.82 Regular price£799.79
Lovibond PHMB Test TabletsLovibond PHMB Test Tablets
Lovibond
Lovibond PHMB Test Tablets Sale price£21.91
Lovibond Glass Moulded Cells with lidLovibond Glass Moulded Cells with lid
Lovibond
Lovibond Glass Moulded Cells with lid Sale priceFrom £9.44
Save £7.86
Lovibond Copper No 1/No2 Tablets Combi PackLovibond Copper No 1/No2 Tablets Combi Pack
Lovibond
Lovibond Copper No 1/No2 Tablets Combi Pack Sale priceFrom £52.57 Regular price£60.43
Save £4.73
Lovibond D005 TTC/E.COLI - D005 TTC/Chromogenic Dipslides (pack of 10)Lovibond D005 TTC/E.COLI - D005 TTC/Chromogenic Dipslides (pack of 10)
Lovibond
Lovibond D005 TTC/E.COLI - D005 TTC/Chromogenic Dipslides (pack of 10) Sale price£31.63 Regular price£36.36
Lovibond Checkit Comparator Test Kit- pH Value (Phenol Red)Lovibond Checkit Comparator Test Kit- pH Value (Phenol Red)
Lovibond
Lovibond Checkit Comparator Test Kit- pH Value (Phenol Red) Sale price£63.41
Lovibond Checkit ComparatorLovibond Checkit Comparator
Lovibond
Lovibond Checkit Comparator Sale price£24.79
Sold out
Blue Horizons - Chlorine Reducer
Blue Horizons
Blue Horizons - Chlorine Reducer Sale price£11.62
Save £12.19
Palintest Ammonia Tubetests 0 - 15 mg/L N
Palintest
Palintest Ammonia Tubetests 0 - 15 mg/L N Sale price£69.11 Regular price£81.30
Safe Swim Meter Reagent DPD-3 Combined Chlorine
ITS
Safe Swim Meter Reagent DPD-3 Combined Chlorine Sale price£9.29
Save £2.16
Hanna Instruments-733-25 Reagents For HR Ammonia Checker
Hanna Instruments
Hanna Instruments-733-25 Reagents For HR Ammonia Checker Sale price£41.14 Regular price£43.30
IDEXX Tear off label vessel 120ml with 100ml line
IDEXX
IDEXX Tear off label vessel 120ml with 100ml line Sale price£171.00
Hyzyme Natural Septic Tank Treatment 600gHyzyme Natural Septic Tank Treatment 600g
Hyzyme
Hyzyme Natural Septic Tank Treatment 600g Sale priceFrom £17.75
LaMotte Insta-Test - Nitrate & Nitrite Test StripsLaMotte Insta-Test - Nitrate & Nitrite Test Strips
LaMotte
LaMotte Insta-Test - Nitrate & Nitrite Test Strips Sale price£20.56

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